Camera optical lens

ABSTRACT

The present disclosure discloses a camera optical lens, including, in an order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. The first lens is made of glass material, the second lens is made of plastic material, the third lens is made of plastic material, the fourth lens is made of plastic material, the fifth lens is made of plastic material, and the sixth lens is made of plastic material. The camera optical lens further satisfies specific conditions.

FIELD OF THE PRESENT DISCLOSURE

The present disclosure relates to optical lens, in particular to a camera optical lens suitable for handheld devices such as smart phones and digital cameras and imaging devices.

DESCRIPTION OF RELATED ART

With the emergence of smart phones in recent years, the demand for miniature camera lens is increasing day by day, but the photosensitive devices of general camera lens are no other than Charge Coupled Device (CCD) or Complementary metal-Oxide Semiconductor Sensor (CMOS sensor), and as the progress of the semiconductor manufacturing technology makes the pixel size of the photosensitive devices shrink, coupled with the current development trend of electronic products being that their functions should be better and their shape should be thin and small, miniature camera lens with good imaging quality therefor has become a mainstream in the market. In order to obtain better imaging quality, the lens that is traditionally equipped in mobile phone cameras adopts a three-piece or four-piece lens structure. And, with the development of technology and the increase of the diverse demands of users, and under this circumstances that the pixel area of photosensitive devices is shrinking steadily and the requirement of the system for the imaging quality is improving constantly, the five-piece, six-piece and seven-piece lens structure gradually appear in lens design. There is an urgent need for ultra-thin wide-angle camera lenses which have good optical characteristics and the chromatic aberration of which is fully corrected.

BRIEF DESCRIPTION OF THE DRAWINGS

Many aspects of the exemplary embodiments can be better understood with reference to the following drawings. The components in the drawing are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the present disclosure.

FIG. 1 is a schematic diagram of a camera optical lens in accordance with a first embodiment of the present invention;

FIG. 2 shows the longitudinal aberration of the camera optical lens shown in FIG. 1;

FIG. 3 shows the lateral color of the camera optical lens shown in FIG. 1;

FIG. 4 presents a schematic diagram of the field curvature and distortion of the camera optical lens shown in FIG. 1;

FIG. 5 is a schematic diagram of a camera optical lens in accordance with a second embodiment of the present invention;

FIG. 6 presents the longitudinal aberration of the camera optical lens shown in FIG. 5;

FIG. 7 presents the lateral color of the camera optical lens shown in FIG. 5;

FIG. 8 presents the field curvature and distortion of the camera optical lens shown in FIG. 5;

FIG. 9 is a schematic diagram of a camera optical lens in accordance with a third embodiment of the present invention;

FIG. 10 presents the longitudinal aberration of the camera optical lens shown in FIG. 9;

FIG. 11 presents the lateral color of the camera optical lens shown in FIG. 9;

FIG. 12 presents the field curvature and distortion of the camera optical lens shown in FIG. 9.

DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS

The present disclosure will hereinafter be described in detail with reference to several exemplary embodiments. To make the technical problems to be solved, technical solutions and beneficial effects of the present disclosure more apparent, the present disclosure is described in further detail together with the figure and the embodiments. It should be understood the specific embodiments described hereby is only to explain the disclosure, not intended to limit the disclosure.

Embodiment 1

As referring to FIG. 1, the present invention provides a camera optical lens 10. FIG. 1 shows the camera optical lens 10 of embodiment 1 of the present invention, the camera optical lens 10 comprises 6 lenses. Specifically, from the object side to the image side, the camera optical lens 10 comprises in sequence: an aperture S1, a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and a sixth lens L6. Optical element like optical filter GF can be arranged between the sixth lens L6 and the image surface Si. The first lens L1 is made of glass material, the second lens L2 is made of plastic material, the third lens L3 is made of plastic material, the fourth lens L4 is made of plastic material, the fifth lens L5 is made of plastic material, and the sixth lens L6 is made of plastic material.

Here, the focal length of the whole camera optical lens 10 is defined as f, the focal length of the first lens is defined as f1. The camera optical lens further satisfies the following condition: 0.5≤f1/f≤10. Condition 0.5≤f1/f≤10 fixes the positive refractive power of the first lens L1. If the upper limit of the set value is exceeded, although it benefits the ultra-thin development of lenses, but the positive refractive power of the first lens L1 will be too strong, problem like aberration is difficult to be corrected, and it is also unfavorable for wide-angle development of lens. On the contrary, if the lower limit of the set value is exceeded, the positive refractive power of the first lens L1 becomes too weak, it is then difficult to develop ultra-thin lenses. Preferably, the following condition shall be satisfied, 1.004≤f1/f≤6.5895.

The refractive index of the first lens L1 is defined as n1. Here the following condition should satisfied: 1.7≤n1≤2.2. This condition fixes the refractive index of the first lens L1, and refractive index within this range benefits the ultra-thin development of lenses, and it also benefits the correction of aberration. Preferably, the following condition shall be satisfied, 1.705≤n1≤2.15.

The thickness on-axis of the first lens L1 is defined as d1, and the total optical length of the camera optical lens 10 is defined as TTL. The following condition: 0.01≤d1/TTL≤0.2 should be satisfied. This condition fixes the ratio between the thickness on-axis of the first lens L1 and the total optical length TTL. When the condition is satisfied, it is beneficial for realization of the ultra-thin lens. Preferably, the condition 0.026≤d1/TTL≤0.168 shall be satisfied.

In this embodiment, the first lens L1 has a positive refractive power with a convex object side surface relative to the proximal axis and a concave image side surface relative to the proximal axis.

The curvature radius of the object side surface of the first lens L1 is defined as R1, the curvature radius of the image side surface of the first lens L1 is defined as R2. The camera optical lens 10 further satisfies the following condition: −52.45≤(R1+R2)/(R1−R2)≤−3.59, which fixes the shape of the first lens L1. When the value is beyond this range, with the development into the direction of ultra-thin and wide-angle lenses, problem like aberration of the off-axis picture angle is difficult to be corrected. Preferably, the condition −32.78≤(R1+R2)/(R1−R2)≤−4.49 shall be satisfied.

The thickness on-axis of the first lens L1 is defined as d1. The following condition: 0.11≤d1≤1.12 should be satisfied. When the condition is satisfied, it is beneficial for realization of the ultra-thin lens. Preferably, the condition 0.18≤d1≤0.90 shall be satisfied.

In this embodiment, the second lens L2 has a positive refractive power with a convex object side surface relative to the proximal axis and a concave image side surface relative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focal length of the second lens L2 is f2. The following condition should be satisfied: 0.92≤f2/f≤4.45. When the condition is satisfied, the positive refractive power of the second lens L2 is controlled within reasonable scope, the spherical aberration caused by the first lens L1 which has positive refractive power and the field curvature of the system then can be reasonably and effectively balanced. Preferably, the condition 1.48≤f2/f≤3.56 should be satisfied.

The curvature radius of the object side surface of the second lens L2 is defined as R3, the curvature radius of the image side surface of the second lens L2 is defined as R4. The following condition should be satisfied: −5.40≤(R3+R4)/(R3−R4)≤−1.48, which fixes the shape of the second lens L2 and can effectively correct aberration of the camera optical lens. Preferably, the following condition shall be satisfied, −3.38≤(R3+R4)/(R3−R4)≤−1.85.

The thickness on-axis of the second lens L2 is defined as d3. The following condition: 0.19≤d3≤0.75 should be satisfied. When the condition is satisfied, it is beneficial for realization of the ultra-thin lens. Preferably, the condition 0.31≤d3≤0.60 shall be satisfied.

In this embodiment, the third lens L3 has a positive refractive power.

The focal length of the whole camera optical lens 10 is f, the focal length of the third lens L3 is f3. The following condition should be satisfied: 100≤f3/f, by which the field curvature of the system then can be reasonably and effectively balanced.

The thickness on-axis of the third lens L3 is defined as d5. The following condition: 0.11≤d5≤0.39 should be satisfied. When the condition is satisfied, it is beneficial for realization of the ultra-thin lens. Preferably, the condition 0.17≤d5≤0.31 shall be satisfied.

In this embodiment, the fourth lens L4 has a positive refractive power with a concave object side surface and a convex image side surface relative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focal length of the fourth lens L4 is f4. The following condition should be satisfied: 0.58≤f4/f≤1.85, which can effectively reduce the sensitivity of lens group used in camera and further enhance the imaging quality. Preferably, the condition 0.93≤f4/f≤1.48 should be satisfied.

The curvature radius of the object side surface of the fourth lens L4 is defined as R7, the curvature radius of the image side surface of the fourth lens L4 is defined as R8. The following condition should be satisfied: 1.52≤(R7+R8)/(R7−R8)≤4.84, by which, with the development into the direction of ultra-thin and wide-angle lenses, problem like aberration of the off-axis picture angle is difficult to be corrected. Preferably, the following condition shall be satisfied, 2.43≤(R7+R8)/(R7−R8)≤3.87.

The thickness on-axis of the fourth lens L4 is defined as d7. The following condition: 0.27≤d7≤0.85 should be satisfied. When the condition is satisfied, it is beneficial for realization of the ultra-thin lens. Preferably, the condition 0.43≤d7≤0.68 shall be satisfied.

In this embodiment, the fifth lens L5 has a negative refractive power with a concave object side surface and a convex image side surface relative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focal length of the fifth lens L5 is f5. The following condition should be satisfied: −1.87≤f5/f≤−0.59, which can effectively smooth the light angles of the camera and reduce the tolerance sensitivity. Preferably, the condition −1.17≤f5/f≤−0.74 should be satisfied.

The curvature radius of the object side surface of the fifth lens L5 is defined as R9, the curvature radius of the image side surface of the fifth lens L5 is defined as R10. The following condition should be satisfied: −3.43≤(R9+R10)/(R9−R10)≤−1.00, by which, the shape of the fifth lens L5 is fixed, further, with the development into the direction of ultra-thin and wide-angle lenses, problem like aberration of the off-axis picture angle is difficult to be corrected. Preferably, the following condition shall be satisfied, −2.15≤(R9+R10)/(R9−R10)≤−1.25.

The thickness on-axis of the fifth lens L5 is defined as d9. The following condition: 0.12≤d9≤0.37 should be satisfied. When the condition is satisfied, it is beneficial for realization of the ultra-thin lens. Preferably, the condition 0.20≤d9≤0.30 shall be satisfied.

In this embodiment, the sixth lens L6 has a positive refractive power with a convex object side surface and a concave image side surface relative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focal length of the sixth lens L6 is f6. The following condition should be satisfied: 0.84≤f6/f≤7.29, which can effectively reduce the sensitivity of lens group used in camera and further enhance the imaging quality. Preferably, the condition 1.35≤f6/f≤5.83 should be satisfied.

The curvature radius of the object side surface of the sixth lens L6 is defined as R11, the curvature radius of the image side surface of the sixth lens L6 is defined as R12. The following condition should be satisfied: −29.36≤(R11+R12)/(R11−R12)≤65.28, by which, the shape of the sixth lens L6 is fixed, further, with the development into the direction of ultra-thin and wide-angle lenses, problem like aberration of the off-axis picture angle is difficult to be corrected. Preferably, the following condition shall be satisfied, −18.35≤(R11+R12)/(R11−R12)≤52.22.

The thickness on-axis of the sixth lens L6 is defined as d11. The following condition: 0.55≤d11≤1.97 should be satisfied. When the condition is satisfied, it is beneficial for realization of the ultra-thin lens. Preferably, the condition 0.89≤d11≤1.57 shall be satisfied.

The focal length of the whole camera optical lens 10 is f, the combined focal length of the first lens L1 and the second lens L2 is f12. The following condition should be satisfied: 0.53≤f12/f≤1.83, which can effectively avoid the aberration and field curvature of the camera optical lens, and can suppress the rear focal length for realizing the ultra-thin lens. Preferably, the condition 0.85≤f12/f≤1.46 should be satisfied.

In this embodiment, the total optical length TTL of the camera optical lens 10 is less than or equal to 6.07 mm, it is beneficial for the realization of ultra-thin lenses. Preferably, the total optical length TTL of the camera optical lens 10 is less than or equal to 5.80 mm.

In this embodiment, the aperture F number of the camera optical lens 10 is less than or equal to 2.06. A large aperture has better imaging performance. Preferably, the aperture F number of the camera optical lens 10 is less than or equal to 2.02.

With such design, the total optical length TTL of the whole camera optical lens 10 can be made as short as possible, thus the miniaturization characteristics can be maintained.

In the following, an example will be used to describe the camera optical lens 10 of the present invention. The symbols recorded in each example are as follows. The unit of distance, radius and center thickness is mm.

TTL: Optical length (the distance on-axis from the object side surface of the first lens L1 to the image surface).

Preferably, inflexion points and/or arrest points can also be arranged on the object side surface and/or image side surface of the lens, so that the demand for high quality imaging can be satisfied, the description below can be referred for specific implementable scheme.

The design information of the camera optical lens 10 in the first embodiment of the present invention is shown in the following, the unit of the focal length, distance, radius and center thickness is mm.

The design information of the camera optical lens 10 in the first embodiment of the present invention is shown in the tables 1 and 2.

TABLE 1 R d nd vd S1 ∞ d0= −0.300 R1 1.871 d1= 0.355 nd1 1.7435 v1 56.30 R2 2.262 d2= 0.197 R3 2.504 d3= 0.440 nd2 1.5140 v2 56.80 R4 5.446 d4= 0.340 R5 −1932.884 d5= 0.259 nd3 1.6056 v3 20.02 R6 −373.187 d6= 0.200 R7 −2.836 d7= 0.550 nd4 1.5300 v4 69.99 R8 −1.495 d8= 0.048 R9 −1.916 d9= 0.250 nd5 1.6140 v5 25.60 R10 −9.511 d10= 0.204 R11 1.616 d11= 1.229 nd6 1.4874 v6 43.05 R12 1.852 d12= 0.621 R13 ∞ d13= 0.210 ndg 1.5168 vg 64.17 R14 ∞ d14= 0.601

Where:

In which, the meaning of the various symbols is as follows.

S1: Aperture;

R: The curvature radius of the optical surface, the central curvature radius in case of lens;

R1: The curvature radius of the object side surface of the first lens L1;

R2: The curvature radius of the image side surface of the first lens L1;

R3: The curvature radius of the object side surface of the second lens L2;

R4: The curvature radius of the image side surface of the second lens L2;

R5; The curvature radius of the object side surface of the third lens L3;

R6: The curvature radius of the image side surface of the third lens L3;

R7: The curvature radius of the object side surface of the fourth lens L4;

R8: The curvature radius of the image side surface of the fourth lens L4;

R9: The curvature radius of the object side surface of the fifth lens L5;

R10: The curvature radius of the image side surface of the fifth lens L5;

R11: The curvature radius of the object side surface of the sixth lens L6;

R12: The curvature radius of the image side surface of the sixth lens L6;

R13: The curvature radius of the object side surface of the optical filter GF;

R14: The curvature radius of the image side surface of the optical filter GF;

d: The thickness on-axis of the lens and the distance on-axis between the lens;

d0: The distance on-axis from aperture S1 to the object side surface of the first lens L1;

d1: The thickness on-axis of the first lens L1;

d2: The distance on-axis from the image side surface of the first lens L1 to the object side surface of the second lens L2;

d3: The thickness on-axis of the second lens L2;

d4: The distance on-axis from the image side surface of the second lens L2 to the object side surface of the third lens L3;

d5: The thickness on-axis of the third lens L3;

d6: The distance on-axis from the image side surface of the third lens L3 to the object side surface of the fourth lens L4;

d7: The thickness on-axis of the fourth lens L4;

d8: The distance on-axis from the image side surface of the fourth lens L4 to the object side surface of the fifth lens L5;

d9: The thickness on-axis of the fifth lens L5;

d10: The distance on-axis from the image side surface of the fifth lens L5 to the object side surface of the sixth lens L6;

d11: The thickness on-axis of the sixth lens L6;

d12: The distance on-axis from the image side surface of the sixth lens L6 to the object side surface of the optical filter GF;

d13: The thickness on-axis of the optical filter GF;

d14: The distance on-axis from the image side surface to the image surface of the optical filter GF;

nd: The refractive index of the d line;

nd1: The refractive index of the d line of the first lens L1;

nd2: The refractive index of the d line of the second lens L2;

nd3: The refractive index of the d line of the third lens L3;

nd4: The refractive index of the d line of the fourth lens L4;

nd5: The refractive index of the d line of the fifth lens L5;

nd6: The refractive index of the d line of the sixth lens L6;

ndg: The refractive index of the d line of the optical filter GF;

vd: The abbe number;

v1: The abbe number of the first lens L1;

v2: The abbe number of the second lens L2;

v3: The abbe number of the third lens L3;

v4: The abbe number of the fourth lens L4;

v5: The abbe number of the fifth lens L5;

v6: The abbe number of the sixth lens L6;

vg: The abbe number of the optical filter GF.

Table 2 shows the aspherical surface data of the camera optical lens 10 in the embodiment 1 of the present invention.

TABLE 2 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16 R1 4.9179E−01 −0.016161767 0.008352796 −0.011228986 0.013295837 −0.009884305 0.003189658 −0.000259957 R2 3.8729E−01 −0.031264038 0.00091055 0.008581547 −0.001928465 −0.013382933 0.008239422 −0.001328269 R3 −6.4815E+00 −0.000425687 −0.041939526 0.004199017 0.036045525 −0.073128067 0.033059949 −0.002392712 R4 1.1686E+01 −0.053075515 −0.034378032 −0.037895937 0.059033592 −0.067481402 0.027860904 −0.00110033 R5 −2.2790E+18 −0.083757648 −0.039771998 −0.063766996 −0.008467134 0.027866051 0.003755607 −0.002082867 R6 −7.0359E+08 −0.050100415 0.038693097 −0.14078822 0.15304992 −0.087036869 0.020964858 −0.000111172 R7 3.1668E+00 −0.044641733 0.054301621 0.07676728 −0.056355753 −0.01200729 0.020621781 −0.004431186 R8 −3.1340E−01 0.008464767 −0.035728038 0.061641093 −0.036663688 0.018202611 −0.002912174 −6.41824E−05 R9 −9.9987E+00 0.021710569 −0.20382079 0.36118867 −0.43053065 0.30206248 −0.11165298 0.016685763 R10 5.9116E+00 −0.16646409 0.23615172 −0.25725607 0.17144767 −0.063705826 1.24E−02 −9.90E−04 R11 −1.1795E+01 −0.16646409 0.031287796 −0.002303106 −0.00027483 1.44E−05 7.70E−06 −7.14E−07 R12 −3.2878E+00 −0.10539554 0.016438127 −0.002984639 0.000318358 −1.76E−05 4.11E−07 −3.53E−09

Among them, K is a conic index, A4, A6, A8, A10, A12, A14, A16 are aspheric surface indexes.

IH: Image Height y=(x ² /R)/[1+{1−(k+1)(x ² /R ²)}^(1/2)]+A4x ⁴ +A6x ⁶ +A8x ⁸ +A10x ¹⁰ +A12x ¹² +A14x ¹⁴ +A16x ¹⁶  (1)

For convenience, the aspheric surface of each lens surface uses the aspheric surfaces shown in the above condition (1). However, the present invention is not limited to the aspherical polynomials form shown in the condition (1).

Table 3 and table 4 show the inflexion points and the arrest point design data of the camera optical lens 10 lens in embodiment 1 of the present invention. In which, P1R1 and P1R2 represent respectively the object side surface and image side surface of the first lens L1, P2R1 and P2R2 represent respectively the object side surface and image side surface of the second lens L2, P3R1 and P3R2 represent respectively the object side surface and image side surface of the third lens L3, P4R1 and P4R2 represent respectively the object side surface and image side surface of the fourth lens L4, P5R1 and P5R2 represent respectively the object side surface and image side surface of the fifth lens L5, P6R1 and P6R2 represent respectively the object side surface and image side surface of the sixth lens L6. The data in the column named “inflexion point position” are the vertical distances from the inflexion points arranged on each lens surface to the optic axis of the camera optical lens 10. The data in the column named “arrest point position” are the vertical distances from the arrest points arranged on each lens surface to the optic axis of the camera optical lens 10.

TABLE 3 Inflexion point Inflexion point Inflexion point Inflexion point number position 1 position 2 position 3 P1R1 0 P1R2 1 1.035 P2R1 1 0.685 P2R2 1 0.485 P3R1 1 1.135 P3R2 1 1.215 P4R1 2 0.805 1.285 P4R2 1 1.025 P5R1 1 1.365 P5R2 2 1.215 1.575 P6R1 3 0.475 1.455 2.235 P6R2 1 0.825

TABLE 4 Arrest point Arrest point Arrest point Arrest point number position 1 position 2 position 3 P1R1 0 P1R2 0 P2R1 1 0.985 P2R2 1 0.745 P3R1 0 P3R2 0 P4R1 0 P4R2 1 1.325 P5R1 0 P5R2 0 P6R1 3 1.045 1.905 2.405 P6R2 1 1.915

FIG. 2 and FIG. 3 show the longitudinal aberration and lateral color schematic diagrams after light with a wavelength of 486.1 nm, 587.6 nm and 656.3 nm passes the camera optical lens 10 in the first embodiment. FIG. 4 shows the field curvature and distortion schematic diagrams after light with a wavelength of 587.6 nm passes the camera optical lens 10 in the first embodiment, the field curvature S in FIG. 4 is a field curvature in the sagittal direction, T is a field curvature in the meridian direction.

Table 13 shows the various values of the embodiments 1, 2, 3 and the values corresponding with the parameters which are already specified in the conditions.

As shown in Table 13, the first embodiment satisfies the various conditions.

In this embodiment, the pupil entering diameter of the camera optical lens is 2.113 mm, the full vision field image height is 3.512 mm, the vision field angle in the diagonal direction is 79.47°, it has wide-angle and is ultra-thin, its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.

Embodiment 2

Embodiment 2 is basically the same as embodiment 1, the meaning of its symbols is the same as that of embodiment 1, in the following, only the differences are described.

Table 5 and table 6 show the design data of the camera optical lens 20 in embodiment 2 of the present invention.

TABLE 5 R d nd vd S1 ∞ d0= −0.296 R1 1.944 d1= 0.747 nd1 1.7095 v1 56.30 R2 2.830 d2= 0.178 R3 4.116 d3= 0.383 nd2 1.5140 v2 56.80 R4 10.680 d4= 0.169 R5 −1524.077 d5= 0.216 nd3 1.8221 v3 20.00 R6 −1524.154 d6= 0.250 R7 −2.881 d7= 0.540 nd4 1.5300 v4 70.00 R8 −1.468 d8= 0.082 R9 −1.740 d9= 0.250 nd5 1.6140 v5 25.60 R10 −6.590 d10= 0.230 R11 2.119 d11= 1.312 nd6 1.5524 v6 39.20 R12 2.02383 d12= 0.487 R13 ∞ d13= 0.210 ndg 1.5168 vg 64.17 R14 ∞ d14= 0.467

Table 6 shows the aspherical surface data of each lens of the camera optical lens 20 in embodiment 2 of the present invention.

TABLE 6 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16 R1 4.8424E−01 −0.009724697 0.00643229 −0.014337536 0.013142226 −0.009123083 0.003418332 −0.000802181 R2 1.0752E+00 −0.005961071 −0.010891846 0.001214623 −0.002515973 −0.013001004 0.00725798 −0.003406199 R3 −2.1616E+01 0.013519457 −0.034892051 0.001581024 0.035138193 −0.07384995 0.031997782 −0.003308671 R4 −4.5323E−01 −0.058038389 −0.029720544 −0.035003017 0.059952828 −0.066779128 0.028584481 −0.000503638 R5 0.0000E+00 −0.067501665 −0.034645078 −0.052356151 −0.002814502 0.028293174 0.00263992 −0.003240837 R6 0.0000E+00 −0.033093803 0.044132362 −0.14409767 0.15167164 −0.08627673 0.022271829 0.001044715 R7 3.9609E+00 −0.048171686 0.043561288 0.071166731 −0.057867191 −0.011201432 0.021965291 −0.003309662 R8 −3.4624E−01 0.016867292 −0.037120467 0.060950025 −0.037172093 0.01782299 −0.003081811 −5.07273E−05 R9 −6.9033E+00 0.017455814 −0.19850846 0.3630793 −0.43029673 0.30189129 −0.11178126 0.016614828 R10 6.2688E+00 −0.17269288 0.23819092 −0.25728957 0.17134048 −0.063731484 1.24E−02 −9.86E−04 R11 −2.1042E+01 −0.17269288 0.031742281 −0.002217256 −0.000281071 1.27E−05 7.61E−06 −6.87E−07 R12 −4.1628E+00 −0.10864802 0.016229825 −0.003019411 0.000316908 −1.73E−05 4.44E−07 −5.89E−09

Table 7 and table 8 show the inflexion points and the arrest point design data of the camera optical lens 20 lens in embodiment 2 of the present invention.

TABLE 7 Inflexion point Inflexion point Inflexion point Inflexion point number position 1 position 2 position 3 P1R1 0 P1R2 1 0.855 P2R1 1 0.665 P2R2 2 0.345 1.135 P3R1 1 1.105 P3R2 1 1.075 P4R1 2 1.045 1.225 P4R2 1 1.045 P5R1 1 1.385 P5R2 2 1.285 1.505 P6R1 3 0.425 1.455 2.235 P6R2 1 0.805

TABLE 8 Arrest point number Arrest point position 1 P1R1 0 P1R2 1 1.095 P2R1 1 0.935 P2R2 1 0.555 P3R1 0 P3R2 1 1.195 P4R1 0 P4R2 1 1.385 P5R1 0 P5R2 0 P6R1 1 0.865 P6R2 1 1.885

FIG. 6 and FIG. 7 show the longitudinal aberration and lateral color schematic diagrams after light with a wavelength of 486.1 nm, 587.6 nm and 656.3 nm passes the camera optical lens 20 in the second embodiment. FIG. 8 shows the field curvature and distortion schematic diagrams after light with a wavelength of 587.6 nm passes the camera optical lens 20 in the second embodiment.

As shown in Table 13, the second embodiment satisfies the various conditions.

In this embodiment, the pupil entering diameter of the camera optical lens is 2.150 mm, the full vision field image height is 3.512 mm, the vision field angle in the diagonal direction is 78.46°, it has wide-angle and is ultra-thin, its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.

Embodiment 3

Embodiment 3 is basically the same as embodiment 1, the meaning of its symbols is the same as that of embodiment 1, in the following, only the differences are described.

Table 9 and table 10 show the design data of the camera optical lens 30 in embodiment 3 of the present invention.

TABLE 9 R d nd vd S1 ∞ d0= −0.265 R1 1.884 d1= 0.229 nd1 2.1002 v1 56.30 R2 2.034 d2= 0.218 R3 2.501 d3= 0.499 nd2 1.5140 v2 56.80 R4 6.612 d4= 0.313 R5 437.829 d5= 0.255 nd3 1.6862 v3 22.00 R6 1099.460 d6= 0.231 R7 −2.959 d7= 0.567 nd4 1.5300 v4 70.00 R8 −1.494 d8= 0.046 R9 −1.725 d9= 0.249 nd5 1.6140 v5 25.60 R10 −8.324 d10= 0.162 R11 1.506 d11= 1.108 nd6 1.5370 v6 44.34 R12 1.89632 d12= 0.677 R13 ∞ d13= 0.210 ndg 1.5168 vg 64.17 R14 ∞ d14= 0.658

Table 10 shows the aspherical surface data of each lens of the camera optical lens 30 in embodiment 3 of the present invention.

TABLE 10 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16 R1 4.5822E−01 −0.018700848 0.007391817 −0.010983518 0.013340825 −0.010022809 0.003212744 −3.56816E−05 R2 4.6448E−01 −0.028832813 0.000812783 0.008173558 −0.001738071 −0.012643694 0.009109667 −0.000555918 R3 −6.4775E+00 0.012526369 −0.03405044 0.002735979 0.036265363 −0.071769847 0.033972662 −0.002218848 R4 1.4245E+01 −0.048656454 −0.033513853 −0.039471875 0.059250087 −0.066744947 0.028207081 −0.00132376 R5 −2.2392E+08 −0.082680675 −0.037347854 −0.062972294 −0.00835786 0.028052976 0.003958199 −0.00174194 R6 7.2798E+05 −0.048814676 0.038933661 −0.14033791 0.15313342 −0.087081001 0.02088604 −0.000245802 R7 3.2631E+00 −0.041213669 0.053602059 0.07657964 −0.056569202 −0.012166146 0.02047916 −0.004525322 R8 −3.1730E−01 0.00754921 −0.03526554 0.062070175 −0.036594465 0.018149432 −0.002959381 −7.67193E−05 R9 −1.0342E+01 0.025489962 −0.20035819 0.36147388 −0.43097217 0.30181044 −0.1117109 0.016744206 R10 −1.4718E+01 −0.16262544 0.23781018 −0.25730316 0.17129507 −0.06376633 1.24E−02 −9.79E−04 R11 −1.0387E+01 −0.16262544 0.030515407 −0.002239508 −0.000261673 1.37E−05 7.40E−06 −6.93E−07 R12 −3.5656E+00 −0.10430584 0.016717008 −0.002980936 0.000315193 −1.74E−05 4.51E−07 −9.02E−09

Table 11 and table 12 show the inflexion points and the arrest point design data of the camera optical lens 30 lens in embodiment 3 of the present invention.

TABLE 11 Inflexion point Inflexion point Inflexion point Inflexion point number position 1 position 2 position 3 P1R1 0 P1R2 0 P2R1 1 0.745 P2R2 1 0.455 P3R1 2 0.035 1.115 P3R2 2 0.045 1.225 P4R1 2 0.775 1.315 P4R2 1 1.025 P5R1 1 1.365 P5R2 2 1.175 1.635 P6R1 3 0.485 1.475 2.205 P6R2 1 0.785

TABLE 12 Arrest point Arrest point Arrest point Arrest point number position 1 position 2 position 3 P1R1 0 P1R2 0 P2R1 1 1.085 P2R2 1 0.705 P3R1 1 0.055 P3R2 1 0.065 P4R1 0 P4R2 1 1.325 P5R1 0 P5R2 0 P6R1 3 1.095 1.895 2.375 P6R2 1 1.785

FIG. 10 and FIG. 11 show the longitudinal aberration and lateral color schematic diagrams after light with a wavelength of 486.1 nm, 587.6 nm and 656.3 nm passes the camera optical lens 30 in the third embodiment. FIG. 12 shows the field curvature and distortion schematic diagrams after light with a wavelength of 587.6 nm passes the camera optical lens 30 in the third embodiment.

As shown in Table 13, the third embodiment satisfies the various conditions.

In this embodiment, the pupil entering diameter of the camera optical lens is 2.033 mm, the full vision field image height is 3.512 mm, the vision field angle in the diagonal direction is 81.64°, it has wide-angle and is ultra-thin, its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.

TABLE 13 Embodiment 1 Embodiment 2 Embodiment 3 f 4.225 4.301 4.066 f1 10.487 6.481 12.926 f2 8.583 12.774 7.518 f3 763.559 135926382 1060.105 f4 5.222 4.987 5.020 f5 −3.956 −3.927 −3.595 f6 9.608 20.899 6.840 f12 4.929 4.549 4.959 (R1 + R2)/(R1 − −10.556 −5.386 −26.227 R2) (R3 + R4)/(R3 − −2.702 −2.254 −2.217 R4) (R5 + R6)/(R5 − 1.479 −39831.640 −2.323 R6) (R7 + R8)/(R7 − 3.229 3.078 3.039 R8) (R9 + R10)/ −1.504 −1.717 −1.523 (R9 − R10) (R11 + R12)/ −14.678 43.520 −8.712 (R11 − R12) f1/f 2.482 1.507 3.179 f2/f 2.031 2.970 1.849 f3/f 180.714 31600709.6 260.722 f4/f 1.236 1.159 1.235 f5/f −0.936 −0.913 −0.884 f6/f 2.274 4.859 1.682 f12/f 1.167 1.058 1.220 d1 0.355 0.747 0.229 d3 0.440 0.383 0.499 d5 0.259 0.216 0.255 d7 0.550 0.540 0.567 d9 0.250 0.250 0.249 d11 1.229 1.312 1.108 Fno 2.000 2.000 2.000 TTL 5.502 5.520 5.422 d1/TTL 0.064 0.135 0.042 d3/TTL 0.080 0.069 0.092 d5/TTL 0.047 0.039 0.047 d7/TTL 0.100 0.098 0.105 d9/TTL 0.045 0.045 0.046 d11/TTL 0.223 0.238 0.204 n1 1.7435 1.7095 2.1002 n2 1.5140 1.5140 1.5140 n3 1.6056 1.8221 1.6862 n4 1.5300 1.5300 1.5300 n5 1.6140 1.6140 1.6140 n6 1.4874 1.5524 1.5370 v1 56.3000 56.3000 56.3000 v2 56.8000 56.8000 56.8000 v3 20.0215 19.9996 22.0000 v4 69.9925 70.0000 70.0003 v5 25.6000 25.6000 25.6000 v6 43.0530 39.2048 44.3448

It is to be understood, however, that even though numerous characteristics and advantages of the present exemplary embodiments have been set forth in the foregoing description, together with details of the structures and functions of the embodiments, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms where the appended claims are expressed. 

What is claimed is:
 1. A camera optical lens comprising, from an object side to an image side in sequence: a first lens has a positive refractive power, a second lens has a positive refractive power, a third lens has a positive refractive power, a fourth lens has a positive refractive power, a fifth lens has a negative refractive power, and a sixth lens has a positive refractive power; wherein the camera optical lens further satisfies the following conditions: 0.5≤f1/f≤10; 1.7≤n1≤2.2; 0.01≤d1/TTL≤0.2; where f: the focal length of the camera optical lens; f1: the focal length of the first lens; n1: the refractive index of the first lens; d1: the thickness on-axis of the first lens; TTL: the total optical length of the camera optical lens.
 2. The camera optical lens as described in claim 1, wherein the first lens is made of glass material, the second lens is made of plastic material, the third lens is made of plastic material, the fourth lens is made of plastic material, the fifth lens is made of plastic material, the sixth lens is made of plastic material.
 3. The camera optical lens as described in claim 1 further satisfying the following conditions: 1.004≤f1/f≤6.5895; 1.705≤n1≤2.15; 0.026≤d1/TTL≤0.168.
 4. The camera optical lens as described in claim 1, wherein first lens has a convex object side surface and a concave image side surface; the camera optical lens further satisfies the following conditions: −52.45≤(R1+R2)/(R1−R2)≤−3.59; 0.11 mm≤d1≤1.12 mm; where R1: the curvature radius of object side surface of the first lens; R2: the curvature radius of image side surface of the first lens; d1: the thickness on-axis of the first lens.
 5. The camera optical lens as described in claim 4 further satisfying the following conditions: −32.78≤(R1+R2)/(R1−R2)≤−4.49; 0.18 mm≤d1≤0.90 mm.
 6. The camera optical lens as described in claim 1, wherein the second lens has a convex object side surface and a concave image side surface; the camera optical lens further satisfies the following conditions: 0.92≤f2/f≤4.45; −5.40≤(R3+R4)/(R3−R4)≤−1.48; 1.19 mm≤d3≤0.75 mm; where f: the focal length of the camera optical lens; f2: the focal length of the second lens; R3: the curvature radius of the object side surface of the second lens; R4: the curvature radius of the image side surface of the second lens; d3: the thickness on-axis of the second lens.
 7. The camera optical lens as described in claim 6 further satisfying the following conditions: 1.48≤f2/f≤3.56; −3.38≤(R3+R4)/(R3−R4)≤−1.85; 0.31 mm≤d3≤1.60 mm.
 8. The camera optical lens as described in claim 1, wherein the camera optical lens further satisfies the following conditions: 100≤f3/f; 0.11 mm≤d5≤0.39 mm; where f: the focal length of the camera optical lens; f3: the focal length of the third lens; d5: the thickness on-axis of the third lens.
 9. The camera optical lens as described in claim 8 further satisfying the following conditions: 0.17 mm≤d5≤0.31 mm.
 10. The camera optical lens as described in claim 1, wherein the fourth lens has a concave object side surface and a convex image side surface; the camera optical lens further satisfies the following conditions: 0.58≤f4/f≤1.85; 1.52≤(R7+R8)/(R7−R8)≤4.84; 0.27 mm≤d7≤0.85 mm; where f: the focal length of the camera optical lens; f4: the focal length of the fourth lens; R7: the curvature radius of the object side surface of the fourth lens; R8: the curvature radius of the image side surface of the fourth lens; d7: the thickness on-axis of the fourth lens.
 11. The camera optical lens as described in claim 10 further satisfying the following conditions: 0.93≤f4/f≤1.48; 2.43≤(R7+R8)/(R7−R8)≤3.87; 0.43 mm≤d7≤0.68 mm.
 12. The camera optical lens as described in claim 1, wherein the fifth lens has a concave object side surface and a convex image side surface; the camera optical lens further satisfies the following conditions: −1.87≤f5/f≤−0.59; −3.43≤(R9+R10)/(R9−R10)≤−1.00; 0.12 mm≤d9≤0.37 mm; where f: the focal length of the camera optical lens; f5: the focal length of the fifth lens; R9: the curvature radius of the object side surface of the fifth lens; R10: the curvature radius of the image side surface of the fifth lens; d9: the thickness on-axis of the fifth lens.
 13. The camera optical lens as described in claim 12 further satisfying the following conditions: −1.17≤f5/f≤0.74; −2.15≤(R9+R10)/(R9−R10)≤−1.25; 0.20 mm≤d9≤0.30 mm.
 14. The camera optical lens as described in claim 1, wherein the sixth lens has a convex object side surface and a concave image side surface; the camera optical lens further satisfies the following conditions: 0.84≤f6/f≤7.29; −29.36≤(R11+R12)/(R11−R12)≤65.28; 0.55 mm≤d11≤1.97 mm; where f: the focal length of the camera optical lens; f6: the focal length of the sixth lens; R11: the curvature radius of the object side surface of the sixth lens; R12: the curvature radius of the image side surface of the sixth lens; d11: the thickness on-axis of the sixth lens.
 15. The camera optical lens as described in claim 14 further satisfying the following conditions: 1.35≤f6/f≤5.83; −18.35≤(R11+R12)/(R11−R12)≤52.22; 0.89≤d11≤1.57 mm.
 16. The camera optical lens as described in claim 1 further satisfying the following condition: 0.53≤f12/f≤1.83; where f12: the combined focal length of the first lens and the second lens; f: the focal length of the camera optical lens.
 17. The camera optical lens as described in claim 16 further satisfying the following conditions: 0.85≤f12/f≤1.46.
 18. The camera optical lens as described in claim 1, wherein the total optical length TTL of the camera optical lens is less than or equal to 6.07 mm.
 19. The camera optical lens as described in claim 18, wherein the total optical length TTL of the camera optical lens is less than or equal to 5.80 mm.
 20. The camera optical lens as described in claim 1, wherein the aperture F number of the camera optical lens is less than or equal to 2.06.
 21. The camera optical lens as described in claim 20, wherein the aperture F number of the camera optical lens is less than or equal to 2.02. 